Usage Tips:Item Type: Diamond Hole Saw Drill Bit Set <br>Material: Iron plated diamond <br>Color: Steel color <br>Type: Drill hole <br>Diameter: 6mm-50mm <br>6mm (1/4in) <br>8mm (5/16in) <br>10mm (3/8in) <br>12mm (1/2in) <br>14mm (9/16in) <br>16mm (5/8in) <br>18mm (11/16in) <br>20mm (3/4in) <br>22mm (7/8in) <br>25mm (1in) <br>26mm (1-1/32in) <br>28mm (1-3/32in) <br>30mm (1-1/8in) <br>40mm (1-1/2in) <br>50mm (2in) <br>Length: Approx. 49mm-57.5mm / 1.93in-2.26in <br>Use: Ceramic, tile, glass, marble, granite, etc. <br>Matching: With handheld electric drill. Suitable for home, factory, industry, etc. <br>Quantity: 15pcs<br>1、Applicable Materials: This bit can remove a full circle of glass, tile, marble, granite, ceramic or other materials. <br>2、Chipless Grinding: The bits in our diamond hole saw bit set can do chipless grinding, making your experience comfortable. <br>3、Fast Grinding Speed: This diamond hole saw bit set can also achieve fast grinding speed, making you more efficient in the actual working process. <br>4、Incisive and Wear Proof: The diamond hole saw bit set is incisive and wear proof with excellent craftsmanship, which can be used for a long time under normal operation and use. <br>5、Light Weight: The overall weight of our diamond hole saw bit set is light, which is very convenient to carry, you can bring the bits you need with you at any time.Be sure to use lubricant (water), otherwise the diamond core will burn out and can be used with a standard electric drill.15 x Diamond&nbsp;Hole&nbsp;Saw&nbsp;Bit